The answer why models are so beautiful!

EVE is based on the idea of modelling because models
support two important facts:

Abstraction
Good design is equivalent to understandable concepts and leads to
an improved system's overview and insight. Models comprise constrains,
bevavior, structure and non-functional properties on an abstract level.
Developers do not need to deal with certain details of underlying
technologies.Comprehension
Formal or semi-formal models follow a common language definition,
which is comparatively easy to understand. Therefore, people from
different fields can understand design concepts in a common way and
are able to discuss alternatives and consequences.